/Engine/Source/Runtime/InstallBundleManager/Public/InstallBundleUtils.h
Starts Session Persistent Stat Tracking under the given SessionName. Will automatically load applicable data from the disk and reset that cache if the ExpectedAnalyticsID doesn't match the one previously serialized. Uses FInstallBundleStatsContainerBase::GetBaseExpectedAnalyticsID if an ExpectedAnalyticsID is not passed in or empty
virtual void StartSessionPersistentStatTracking ( const [FString](API\Runtime\Core\Containers\FString) & SessionName, const [TArray](API\Runtime\Core\Containers\TArray)< [FName](API\Runtime\Core\UObject\FName) > & RequiredBundles, const [FString](API\Runtime\Core\Containers\FString) & ExpectedAnalyticsID, bool bForceResetStatData )